In the GOP debate, Donald Trump said he couldn’t commit to support the ultimate nominee, and refused to rule out a third party run, but he never faced the obvious follow-up question. If he really cares about the conservative principles he now espouses, why wouldn’t he promise to support the Republican nominee?

Does he think that there is any chance that Hillary Clinton would come closer to representing a conservative agenda than any conceivable GOP candidate?

Trump’s position on this issue exposes the limitations of his presidential campaign: it’s entirely about one man and his brash personality, and has nothing to do with needed conservative reforms. Yes, Trump talks a lot about immigration but offers no solutions beyond building a “big wall.” His plan for the economy is nothing more than “I’m a great negotiator and can bring back jobs.” The presidency isn’t a dictatorship, and focusing on personality more than principle is a dangerous indulgence.